Improvement in machines fob polishing wood



l @uitrit tstes @fili-w EDWARD WEISSENBORN, .or HUDSON Grrr, JERSEY,

, Letters Patent No. 67,240, dated July 30, 1867.

IMPROVEMENT 1N moulure ron Poussins woon.

l @the Santilli ,nitriet tuin tiges @zum @atentan makingninst-itrsam;

To ALL WH'oM 1T MAY CQNGERN; l o

Be lit known that I, EDWARD WEIssEnBonn, of` Hudson City and county, and State of New Jersey, ccnetrncting engineer, hsve invented certain news-nd useful Machinery' for Smoothing und Polishing th'e Wood of Lead-Pencils, which machinery is applicable also to smoothing and polishing other similur cylindrical `forms of wood to be used for uuyzcther purpose; and that the following is a full and exact description of my said invern tion and machinery, reference being had to the drawings accompanying and making part of this specification.

, Figure I of lthe drawings represents e. flontelevation'of my machinery.

Figure llrep'resents atop view or plan of the same. Figure III `represents s. side or-end elevution-of the same. v. Figure IV represents a section of u. part of the machinery at the line Figure V represents a section of e. partof the machinery at line f In all the gures the` same letters and signs represent'the same parte. 4 v

,Thenature of my invention consists, firstly, in the manner o f receiving, holding,` and carrying the pencils to be pnlished`.nnder polishing surfaces by'meansrof" endless aprons vandav supporting-table and yguide-lilocks attached to one ofthe-aprons,so constructed'and arranged undroperuting as' to continuously curry thepencils underthe polishing s urfaces,polish them, conduct-them forv'vard,"and discharge them ;A secondly, in combining o und arrangingfthe polishing-blocks with the aprons, so thatthey will uct continuously and with uniform pressure npon.. thesur;i'aces,of the. pencils, and the operation ofsmcothing lund'polishing'hlninterruptedly"hurried on Without stopping the machinery for the supply or discharge ofVA the pencils thirdly, in the novel form andus'e of particular featuresor .'parts of the machinery hereinafter'purticularly'described und cillin-ediA vMy machinery in Fig. 11.- vin'Figr'IIL may hey applied to polishing other articles of similar cylindrical figures, as well as lto peuell.

machinery is constructed as follows-z Upon a suitably-constructed:main'bed-fumier tabled. I'plu'ce the two `pau'nllel and equal piecesrB B, which,'resting on their-edges, -extendulong thehwhole'fronticf the nuiiii frmeAA, andere supported on and fastened `to the cross-pieces C'C which rest upon the mitin2 frame. Ilhe twopieces B B are provided with several connect-ing cross-piecesv (not seen in the drawing) which hold them rmly together,and at the saine time; support a flat' bearing-board or table extending Inenrly'tliervl'iole length v betvfvee'n B' B, the width of which is about equal to but' less than the' length 'of' the pencil'siir'hich nre to operated upon. Upon the t-W'o revolving 4drums D- D is stretched the interi'orendlessapron rblt E, shoivn in section in F-ig.` IY.r The shaftd (Fig. IVD-of D has its bearings inadjustab'le slidesd, adjustable'y thumb-y screws'dfi.. bearing-bones d,' a nd which, hearing-boxes are fast to'the' upper 'side of 'the Ifi'u'm"e `piece'. The purpose' of, the slides und thumb-screws is 'to' stretch or'relax the alpromi'vhen'desired. The; shaft of drum has itslheurings ds 'ixed upon the' opposite end-of the frame-piece. The upper' portion of the l'iproi'i or'bolt E moves dir .ectly under` the flut beuriug-bosird or, table` above described, but notku'nde'r its wholelength.4 lUpon the .outerr'surface ofm the apron E, at its sideledg'es, cirel fixed the thin" upright blocks orguidesie evelalong its entire length.y These blocks eA e e uro placed onopposite sides ofthe apron i in parallel pairs; ythe innerlfeces of.-the-'blocks uregrooved in parellelgroovesbf about "u 'width `to yuduiit the ends efuthe' Vpencils'lying in across theexterior apron next-'to be described. The y'ui''iseeri inl cross-section ut eein'Figl II. l The blocks ce'e ,are-fastened. upon `the apron' only stone point,'n.t thexniddlo pf theirlowerfedges, so :is te permit th'eni towhuve' required position when turning upon the drums. The use of' this apron, and thi-:fguide-,blocl/s undl gro-riveli therein is.to hold and ro'll the pencils .for'Wur'd-under "thesmoothngand 'polishing'nfsuifacesQ as hereinclt'ter de scribed'.-Upon the revolving drums G (ir/(Figs. III, IV)'is stretched the' endlessalpronH. shraift'lqmrit` drums G has its bearings i'n'fixed'journal-boites, The shaft yzof the opposite drujunG", beuriiigs in s slide'moving in` abox fast to the' frame', and provided irith a'tlhumb-scr'evi'," the s'nme'asvblefore L regard to bearings of shaft d' of drum Theobjec't oflthey slidcend'thu; 'i t 'fifi' 'rnlory reloitfthe 'aprongfas described. The upper pdrtionoffapron-H fphssesovernnd h'asa heeringA or ta'b'le between B 4Bubove described, 'and the' lloiver porti4'1-iof this aileronpusses'lindej l. t8 tovbe cleuriof it aillround. H (Figs. I and II) is a, pressure-roller, huvirig itsh hearings Y l '117, gfa'stto the'frame-piece, ",bove'the'upron H, uponT end 'between the first-l guide and'suppe-` ding' plus the smoothing und polishing-blocks J, shown .iff frontand 'end elevution'lin Il, eveyle Figs. .III ond-V, and inc rosssec'tion in Fig.- IV. In the prsent machine these blocks are four in number,- buttho {number may be varied. The blocks Jhave projecting shoulders on each side, und which lap over uponth'e'guide-- pieeesj, and upon which they have their bearings when they are not ush upon 'the pen cils, between their lower faces and the nppe'rsurface of apron H. Upon the under faces of the blocks, whchare made smooth and even, are glued sand-papers of increasing fineness, from block to block, beginningwith the block which first acts upon the pen'c'ils.

Upon the frame of the machine are placed the'upright bent brackets K, seen in side elevation in Fig. I and in front elevation in Fig. II, the head of each bracket being bentlforward so as to be directly over the lineof the polisliingf.V

' blocks, and the heads of the bracketsare 4secured to the horizontal.cross-beam L. M are pressureesprings, the i upper ends, m, of which are slotted toreceivea pin fast in the crossbeam; and a nut or button, m, secures the' upper end of M upon vthe pin in vits place, and the slot allows the required degree ofadjustment.' The oppositeor lower extremity of the pressure-springs M is inserted into a V-notch, m2, fast to the upper side ofthe polishing-5 block, and which notch is open, so as readily to slip the spring out laterally when occasion arises. The pressure. springs are held in their places at the lower ends by their elastic pressure in thelnotches. The elastic`pr zssnre of these springs causes a uniform pressure of the polishing-blocks and sund-papers upon the pencils while being' i sinoothedfand polished. Upon the cross-beams of the after part of the main frame is the horizontal drivinigl. shaft 1, turning in journal-boxes in bearings fast to tlie `cross-beams of thevframe. On the exterior end of this shaft'is the driving-pulley 2 and the loose pulley 3.. Upon the shaft 1 are also iced two pulleys, 4 and 5,`whichv are geared by bolts to the smaller pulleys 6 and 7, which arson the upper part. of theifrarne above, as hereafter;

particularly described. Upon the shaft 1 is also i-xed the small bevel-wheel 8, geared into la1ger,bevel'\vheel 9, fast to 4end of shaft 10, turning in journal-boxes having' their bearings in the beams of. the frame. Upon tbeopposite end'of shaft 10 is the pulley il, which is connected by belt with the larger pulleyl12 fast to 'endlof shaft1 13 journalled inA bearings fast to the beams of front frame. Near the opposite end of shaft 1'3 is the pii'iou 14, geared into spur-wheel 15, fast' to end of Ashaft g, before described.: Upon the extreme nd of shaft 13, outside of pinion 14, is the lesser pulley 16, geared by belt to larger pulley 17` fast to shaft 18, journalled in bearings fast on thefraine-beams. lpo'nl shaftf18, next inside of p'ulleyv'17, is pinion 19,l geared to spur'- wheel 20 onshaft d5, before described. The pulleys 6 and 7, hereinbefore described, are fast to shafts which have theirbeaiiug's upon the top beams of the after part of the main frame, as seen in Fig. II. O neach end' of the shafts are cranks 6*, with a pin or wrist', 6", the cranks being set upon the shaft in reverse direction to each other. 6 6. are connecting-rods which are at one endjournalledupn'the cranks, and Vat the other end tothepsrt of the polishingblocks which is directly under the springs M at in'. (The pair of connecting-'rods and polishing 'blocks operated by pulley 'lare left`ut of Fig. Il of drawing, inorder to permit the parts underneath to appear in the drawing.) y v l I 4 Having described the different-parts of my machine-ry, I now proceed todescribe the manuerof operating the same. l i

Motion being given to driving-pulley '2 from any prime mover, the pulleys `3 4 upon shaft 1 give mofion the'heltslto pulleys 6 7, by which, and the shaft and cranks 6 andthe connecting-rods 6,a swift reciprocating movement -isjgiveu tothe polishing and smoothing-blocks J. At the same time the gearing-wheelsS 9 on shafts '1. and 10 give rotation to pulley'll, and by beltto pulley 12, and this gives rotation to pinion 14, toothed to spur-wheel 15, which puts shaftlg in rotation, by which drum G is rotated, carrying over it the apron H, a.n'd

thence the corresponding drum G in Athe direction indicated by the arrows, Fig. II. The pulley 16, connected by belt withpulley I7, gives rotation to it, and by pinion 19 and spur-wheel 2Q to shaftd, upon :which is drum D,l over which passes' the interior vapron E, to the correspondingvdrum D', andfoarrying-ou it tbeguid'e gr'ooved blocks e. Theloperativestands at the angle of the frame (near to pulley'112) and.' feeds the machine wiihlthe pencils, dropping a pencil into cach. groove of the guide-blocks as they pass before hiin towards th polishing and smoothing-blocks J. A`littl'e pructice'enables the operative to drop the pencils into the grooves with great rapidity 4and ease while thc-:machinery is running at its full speed. The pencils pu'ss alonguponand with the' apron H, and are carried, rolling, under the polishing and smoothing-blocks, in successionfand the sand-pper'lu upon the under surfaces of the blocks act upon'every part of4 the surfaces of the pencls, giving them, with the greatest rapidity, a most beautiful and complete smoothness and polish. When the .polishing is complete the pencilsl pass o over the vapron Hand fall into u. 1'eceptucleut-the end of the machine.4

V .V I. I I w, Hayingthus described` my machmery and'the manner of. operating the'same, what I claim therein as my invention, and desire to secure by Letters-Patent, isf#- 1. The combination-of two endless aprons E and -ithe grooved. guide-blocks e with vthe. supporting .table4 between the aprons'foi-' receiving,l holding,'-andcarrying-the'pencilsunderthe polishiiig-bloeksfand discharging` them therefrom, arranged, constructed, andoperating in the manner and for the purposesdescribed.

strueted and-arranged andloperating inthe manner and for the purposes described. 8. The combination of thebent vertical pressuresprings with the polishing-blocks J, the springs beingl provided with slots and buttdnsfor adj us t1ne'.1t',rasdescrib ed, constructedarrangefl, und operatipg in the ruuuner and for tli purposes described.

` 2.1i The combinationv of the aprons,table, and guide-blocks aforesaid with thepolishing-blocks JJ, cou5 I 4. Thecombination of the .polishin'ugjhloclts Jv'witli side pieces or'supports'vjito .guide the polisliing-1` carried along by the aprons, andat the.sauietimey receivethe required pressure for polishing.

EDW.' WEISSENBORN.

blocksanchsuppor't them at the desired point, sol thatthe pencils may pass under` them with facilitylasthey are. 

